Choose the wrong statement ?

Refrigeration and Air Conditioning 15/01/2023

A. Temperature of medium being cooled must be below that of the evaporator
B. Refrigerant leaves the condenser as liquid
C. All solar thermally operated absorption systems are capable only of intermittent operation
D. frost on evaporator reduces heat transfer
E. refrigerant is circulated in a refrigeration system to transfer heat

Related Mcqs:

    In vapor compression cycle, the condition of refrigerant is high pressure saturated liquid________________?
    A. after passing through the condenser B. before passing through the condenser C. after passing through the expansion or thiottle valve D. before entering the expansion valve E. before entering the compressor...
    Vapor compression refrigeration is some what like ____________________?
    A. Carnot cycle B. Rankine cycle C. reversed Camot cycle D. reversed Rankine cycle E. none of the above...
    The value of COP in vapour compression cycle is usually__________________?
    A. always less than unity B. always more than unity C. equal to unity D. any one of the above E. none of the above...
    The leaks in a refrigeration system using Freon are detected by____________________?
    A. halide torch which on detection produces greenish flame lighting B. sulphur sticks which on detection gives white smoke C. using reagents D. smelling E. sensing reduction in pressure...
    The coefficient of performance is the ratio of the refrigerant effect to the_________________?
    A. heat of compression B. work done by compressor C. enthalpy increase in compressor D. all of the above E. none of the above...

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